We will give a rule breaker several warnings before kicking them from the server. Upon returning, we will give them additional warnings before the second kick.
Other clans may deal more strictly with rule breakers, but we feel someone has to provide an environment where people can learn to race without being indiscriminantly kicked without understanding why.
Of course that patience is often abused by people intent on causing trouble. Our admins do our best to deal with those types of guests, and we understand it can be very frustrating. There are guests that break rules night after night. We will catch on, and we will start giving them a shorter leash. Sometime we are probably too lenient I'm sure. But better to do that than be overbearing and drive people away.
As for taking the word of guests, we have a blanket policy that we do not take the word of anyone in the server other than other big tag admins. Many times even seasoned racers get things wrong. So do admins, but at least we have only ourselves to blame. Other racing clans have slightly different rules as well. And even a long time racer might have a grudge against someone, for all we know, and we don't want to be falsely accusing anyone on the word of someone who may or may not know our rules and be applying them in an unbiased way.
So in general we give people quite a bit of leeway and give them a chance to catch on to race and follow the rules. If we don't do this, and other clans don't either, we won't attract new players and Halo race would die a quick death I'm afraid. We need to encourage everyone we an if we want to perpetuate this game type. At the same time, we don't want problem players in all the servers driving the guests away who want to race. So we have to find a balance. It's not easy.